calculate According to the phase diagram given, which of the following is INCORR

Question

calculate According to the phase diagram given, which of the following is INCORRECT? The lattice energy for ionic crystals increases in the charge on the ions and the size of the ions Which of the following statements concerning aqueous solutions of salts is FALSE? Which one of the following salts gives a basic aqueous solutions? Under which of the following conditions will vaporization best occur? If the reaction is run in a cylinder with a movable piston, decreasing the volume will cause Which one of the following will not cause a shift in equilibrium to the right?

Explanation / Answer

1.

option D is incorrect because the freezing point lies near 200 torr.moreover even after decreasing the pressure we would reach at the triple point where all the 3 states exists, not just solid.

2.

The force of attraction between oppositely charged particles is directly proportional to the product of the charges on the two objects (q1 and q2) and inversely proportional to the square of the distance between the objects (r2).

and lattice nergy is the direct consequence of this force.

So option B is correct increses,decrease

3.

option A because   salt of a weak acid and a weak base produces a solution whose pH depends on the strengths of the acid and base which made the salt.

4.

option B is correct, beacuse in presence of H2O, the reaction is:

NaHS + H2O = H2S + NaOH (diluted)

5.

option C.

all the factors favouring vapourisation

6.

left side has 3 moles, right side has 2.

so option a is correct

7.

option c, as HCl reats with neither with the reactants nor with the product

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